Studies on the Adatability of Introduced Species from Australia for Grassland Establishment on Saline Land(Part I)

간척지(干拓地) 초지조성(草地造成)을 위(爲)한 도입호주품종(導入濠洲品種)의 적응성(適應性) 조사(調査)에 관(關)한 연구(硏究) (제(第)1보(報))

  • Kwon, S.K. (Dept. of Animal Husbandry, College of Agriculture, Chungnam National University) ;
  • Lee, I.H. (Dept. of Animal Husbandry, College of Agriculture, Chungnam National University) ;
  • Kim, Y.K. (Dept. of Animal Husbandry, College of Agriculture, Chungnam National University)
  • 권순기 (충남대학교 농과대학 축산학과) ;
  • 이인호 (충남대학교 농과대학 축산학과) ;
  • 김용국 (충남대학교 농과대학 축산학과)
  • Published : 1976.05.31

Abstract

This experiment was studies for grassland establishment on west coastal saline land in Korea from May 1975 to March 1976 and used seeds were introduced from Australia. The results of adaptability were summarized as follow. 1. The seeds germination percentage was not influence in 0.5% salt included, but delayed days in 1% salt included and decreased germination percentage. 2. Any experimental grasses species were not growth on the 0.5% salt included soil and also growth was much damaged on the 0.05% salt included soil. It was suggested that $Mg^+$, $K^+$ ions involved with $Na^+$ ion. 3. The yield of grasses were much decreased on 0.05% salt included soil which compared control group. The yield rate of decrease were 30% in kikuyu, 60% in strawberry clover, 63% in reed canarry and 89% in orchard grass. 4. For winter-hardness test, nearly all the species well overwintered but except kikyu. 5. One of salt tolerance native grass (Agrostis distans crieseb var coreensis, Hackel) was discovered in saline area, and it was growth from middle of May to Middle of September. Also it was known that the native grass was good feed stuff but it was not so long in growth life. 6. It was concluded that more experimental work must be carried out to select of salt tolerance grass for grassland establishment on saline by introduce some more species such like saltgrass, saltbush, shadsclae from foreign land.

이 시험(試驗)은 간척지(干拓地) 초지조성(草地造成)을 위(爲)해서 내염성(耐鹽性)이 강(强) 목초(牧草)의 품종(品種)을 선택(選擇)코져 1975년(年) 5월(月)부터 1976년(年) 3월(月)까지 호주(濠洲)에서 도입(導入)한 몇가지 품종(品種)을 우리나라 해안지대(海岸地帶)에서 재배(栽培)하여 적응성(適應性)을 조사(調査)한 것이며 그 성적(成績)을 요약(要約)하면 다음과 같다. 1. 공시품종(供試品種)의 발아시험(發芽試驗)에 있어서 0.5% 염분함량(鹽分含量)에서는 발아(發芽)에 지장(支障)이 없었으나 1%의 염분함량(鹽分含量)에서는 발아일수(發芽日數)가 연장(延長)되었고 발아율(發芽率)도 떨어졌다. 2. 간척지(干拓地) 재배(栽培)의 결과(結果)는 0.5% 염분함량(鹽分含量)에서 전연(全然) 생육(生育)이 안되었고 0.05% 염분함량(鹽分含量)에서도 생육(生育)에 지장(支障)이 많았다. 이러한 결과(結果)는 간척지(干拓地)의 Mg. K ion 등(等)이 상호작용(相乘作用)을 하는 것 같다. 3. 청예수량(靑刈收量)은 무염구(無鹽區)에 비(比)해서 0.05% 염분함량구(鹽分含量區)가 대단(大端)히 떨어지는데 Kikuyu는 30%, Strawberry clover는 60%, Reed canary는 68%, Orchard grass는 86%가 감소(減少)되었다. 4. Kikuyu는 우리나라에서 전연(全然) 월동(越冬)이 불가능(不可能)하며 기타(其他) 품종(品種)은 월동(越冬)에 지장(支障)이 없다. 5. 우리나라 간척지대(干拓地帶)의 야초중(野草中)에서 0.5% 염분함량(鹽分含量)에서도 생육(生育)이 되는 갯겨이삭이 있으며 화본료사료(禾本料飼料)로서 성분(成分)도 우수(優秀)하다고 생각(生覺)되나 생육기간(生育期間)이 5월중순(月中句)부터 9월중순(月中句)까지 4개월간(個月間)이므로 크게 기대(期待)할수 없다. 6. 내염성(耐鹽性)이 강(强)한 목초(牧草)를 선택(選擇)하여 간척지(干拓地) 초지(草地) 조성(造成)을 하기 위해서는 Saltgrass, Saltbush, Shad Scale과 같은 것이나 기타 몇가지 품종(品種)을 계속(繼續) 도입(導入)하여 더욱 연구(硏究)할 필요(必要)가 있다고 생각(生覺)된다.

Keywords

Acknowledgement

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